List of featured suppliers of VENTILATION Cowls on Building Products Index
Ventilation cowls are devices used to increase circulation of air and control the flow of exhaust gases in certain areas. They consist of a cylindrical or conical shaped cap that fits over a pipe or chimney, with the wide end facing upwards to catch the wind and the narrow end facing downwards to limit the entry of rainwater. The cowls may be made of various materials including metal, plastic or aluminum and can be attached to the roof or the outer wall of the building. They are commonly installed in industrial buildings, factories, power plants and other structures where air quality and temperature control are critical for safety and comfort reasons.
